Uncle Scotty's Cocktail Source

nope, it's a non-synthetic. but redline 75w90 is...Redline products that finish with "ns" means non-syn.

But just remember that the winter weight of the lubricant is lower then what Subaru recommends....is that an issue? I doubt. It's not like your putting in 75w140 LOL

 

Where did you find that nugget of information ? I was under the impression that *all* Red Line products were synthetic.

75W90
Our most popular gear oil, this is the preferred product in nearly all car and light truck differentials, both conventional and limited-slip. 75W90 is preferred for most racing applications. It contains friction modifier which is recommended for limited-slip units. 75W90 Gear Oil can be used in many transmissions and transaxles; however, other Red Line lubricants have better frictional properties for rapid synchronization. Exceeds API GL-5.

75W90 NS
This GL-5-type geal oil doesn't contain the friction modifiers for limited-slip hypoid differentials. This makes the transmission synchronizers come to equal speeds more quickly, allowing faster shifting and much easier low-temperature shifting. Can also be used in racing limited-slip differentials where weak spring design causes too much wheel spin.​

Stuart.

 

Not from Redline's site.

http://www.redlineoil.com/pdf/5.pdf

 

Not quitet! I remember reading abobout it about it a few months ago. They introduced the NS range for guys like I refuse to a synthetic GL the only synthetics I use are GFs but not GLs (unless I have a LSD then I MAY) it gave us the option of using a high quality GL product without having to swap to a synthetic and eat through the seals on our diffs.

I also won't use a synthetic CF if I don't have to...perhaps in an F350 during winter but otherwise it's NS all the way



wow, that was confusing.

 

Boy am I glad I haven't used that redline stuff then! I just read that article you posted webcrawlr and it appears I was definetly wrong, I do apoloise for that. so now I really want to find that article that says it wasn't a synthetic!!!!

 

I dunno, but I had all Redline 75w90ns in the tranny for a year or since we did the Redline GB a while ago. I just did the Scotty's at Mike's tonight and it made a helluva difference.

The shifting is smooth like butta. I guess I never thought it was bad before accept for 4th. 4th always seemed to grind a wee bit when the tranny got warmed up. But now every gear seems to glide right in. Even 4th goes in without a hitch at all. So nice!


Still gotta wonder how that ****er came up with this formula...

 

Sychromesh to help the syncro engagement, Shockproof for high load gear protection, Hypoy-c cause it's just a high quality dino. It was basically done to address some key points found with the 5sp tranny. The syncros are sensitive to the oil viscosity. Syncromesh is a great oil for good syncro action. It's what it's made for. Under higher power(300HP+), normal oils seem to not be able to hold up to the high forces and don't adequately protect the gears. Shockproof is used to help with this and act as a high force barrier. Then Hypoy-C is just the best dino Scotty could find. I couldn't tell you if there's better out now though. The forumla has been around for several years. Just realize the Syncromesh is not a GL-5 rated oil. I don't think the Shockproof is either, although I've heard instances of people running 100% of either in their Subarus seemingly with no problems. There are a LOT of happy Scotty Cocktail customers, and although the thinking behind the "cocktail" isn't exactly scientific, it's practical and seems to work quite well.

Since we do live in a cold climate, the dino will prove to be problematic in cold weather, cocktail or not.

The Redline NS type simply doesn't contain the limited-slip diff modifiers. These additives would normally make the oil slipperier and compromise synco effectiveness. A lot of people were disliking the regular 75w90 because of this, hense why NS should be used in our trannies. Both the NS and non-NS oils are synthetic. NS does not mean non-synthetic , probably means "no slip" modifiers.

When I did my fluids a couple years ago, I personally went with Amsoil Severe Gear. It had the lowest pour temp available of any brand and offered solid specs all-around and high viscosity on par with anyone else including Redline and Neo. I also found zero instances of anyone ever complaining about it, zero. Two years later, I'm still happy with it. It's as good as the day I put it in, extends cold weather usability down a good 30 degrees from the stock dino, and it shifts smoother too. I've never once ground gears that wasn't my own fault(miscommunication between brain and left foot). It's been around 30k miles so far. The coldest I've run the car in was I think the temp guage said -17F or whatever it was that really cold day last winter. The battery turned the engine over pretty slow, but it started up and she drove. The engine ticked like someone was hammering on the thing. Shifting will never be summer smooth at those temps, but the gear box was actually usable to a decent extent dead cold unlike dino.

You guys worry about dino versus synthetic when there are both good and bad products of both types. A good dino will work good. A good synthetic will work good. A synthetic will much delay the ill side-effects of cold weather that's normally seen with dino fluid. It's a non-issue in a warm climate like southern California, but here in Minnesota, it should be. Any oil that is too slippery will create poor syncro function. Any oil that has adequate viscosity will have normal syncro function. This is independent of the oil being a dino or synthetic. Most manufacturers have spec sheets for their oils. It's a good idea to read through them and compare. Some are considerably better than others.

 

Picked up the Red Line at Courtney's last week, and the rest at Pep Boys in IGH today. They were pretty well stocked, with the Pennzoil running $8/qt and the Castrol at $5/qt. Putting it in Friday in time to test it out properly at Sunday's AutoX

Stuart.

 

A belated update: the relatively nasty grind in 4th gear (everytime you shifted into 4th it crunched) on the '97 Impreza I bought is completely gone after swapping the gear oil! Granted the fluid I swapped was probably original 139k mile crap. But this formula works and i won't use anything else in a 5sp subaru gearbox.

 

Maybe I missed it, but where did you guys get the redline? I found all of the other stuff but I cant find the redline anywhere. I got the synromesh straight from a GM dealer ($$$), and the Hypoy from Oreilly's but no one had redline. I'd like to get it in by the weekend for sunday's auto-x.

 

It's been mentioned a number of times in this thread that LSE have it on the north side of town, and Courtney Truck Service carries it down here on the south side. It looks like you're in Savage, so Courtney's is probably your best bet.

Stuart.

 

I got my redline at LSE Performance, but it can be had at Courtney's Truck in EP.

 

Ha, way to go, Stooooooooo

 

give me one hour and GrimmSpeed will be fully stocked with ALL the stuff you guys need for the cocktail mix. just think..everything you need in one place right in downtown st. paul!!!

 

Cool, I need to get a quart of redline, I have the rest already.

How much extra is delivery to firestone?

 

ok i officially have everything needed for the tranny cocktail. its really hard for me to get to firestone. you could just come a few miles more and stop at the shop

 

Thanks, Justin. No more 2nd and 4th synchro grinding when it's hot or at high RPMs. Shifting got easier, too.

Redline Lightweight Shockproof is BLUE! Who'da thunk it?